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Finding the Fourth Proportional to 374.76, 517.08 and 325.56

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Solution

The fourth proportional to 374.76, 517.08 and 325.56 is: 449.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.76 : 517.08 = 325.56 : x
  2. Step 2: Convert to fraction form
    374.76/517.08 = 325.56/x
  3. Step 3: Cross multiply
    374.76x = 517.08 × 325.56
  4. Step 4: Simplify right side
    374.76x = 168,340.56
  5. Step 5: Solve for x
    x = 168,340.56/374.76
  6. Step 6: Final answer
    x = 449.20

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Find fourth proportional to 187.38, 258.54 and 162.78
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.